1430252240 has 80 divisors (see below), whose sum is σ = 3550808448. Its totient is φ = 534471168.

The previous prime is 1430252209. The next prime is 1430252267. The reversal of 1430252240 is 422520341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70082 + ... + 88158.

Almost surely, 2^1430252240 is an apocalyptic number.

1430252240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1430252240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775404224).

1430252240 is an abundant number, since it is smaller than the sum of its proper divisors (2120556208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1430252240 is a wasteful number, since it uses less digits than its factorization.

1430252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18156 (or 18150 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1430252240 is about 37818.6758097107. The cubic root of 1430252240 is about 1126.6894097312.

Adding to 1430252240 its reverse (422520341), we get a palindrome (1852772581).

The spelling of 1430252240 in words is "one billion, four hundred thirty million, two hundred fifty-two thousand, two hundred forty".